A164818 Integer average digit of squares.

1, 4, 9, 5, 3, 3, 3, 3, 6, 6, 3, 4, 4, 4, 4, 4, 4, 5, 5, 2, 2, 5, 5, 5, 5, 2, 5, 2, 5, 5, 5, 5, 5, 2, 5, 5, 5, 5, 5, 5, 5, 5, 5, 8, 3, 3, 3, 3, 3, 3, 3, 3, 6, 3, 3, 3, 6, 3, 6, 3, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 6, 6, 3, 6, 3, 3, 3, 3, 3, 3, 3, 6, 3, 3, 3, 3, 3, 6, 6, 6, 6, 3, 3, 3, 6, 3, 3, 3, 3, 6, 6, 3, 6

Offset

1,2

Comments

a(n)= average digit of squares of A164817(n).

The only n for which a(n) = 9 is 3. a(44) = a(26165) = 8. - Robert Israel, Feb 24 2016

Links

Robert Israel, Table of n, a(n) for n = 1..10000

Maple

f:= proc(n) local L, r;
L:= convert(n^2, base, 10);
r:= convert(L, `+`)/nops(L);
if r::integer then r else NULL fi
end proc:
map(f, [$1..1000]); # Robert Israel, Feb 24 2016

Crossrefs

Cf. A004159, A164817.

Sequence in context: A200396 A011513 A340350 * A065796 A070434 A011003

Adjacent sequences: A164815 A164816 A164817 * A164819 A164820 A164821

Keyword

base,nonn

Author

Zak Seidov, Aug 27 2009

Status

approved